About how much would it cost to buy 4 cd/mp3 players and 3 mp3 cd players $74. mp3 $99.00

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Geometry in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

Write the equation in logarithmic form e^x=403.429